Improvement in electro-magnetic boiler-feed regulators



v I 'ZSheets-Sheth R. A. HAYES.

ELECTRU-MAGNETIC BOILER FEED'REGULAT OR. 'No.189,098. I Patented April},1877.

2 Sheets-Sheet 2.

v R. A..HAYES, ELECTED-MAGNETIC BOILER FEED REGULATOR.

Patented April 3 1877.

"PETERS, PHOTO-LITHOGRAPHER, WASHINGTON. D,O

7T0 all'whom among co ce n; V

NITEDSTATES PATENT OFFICE}.

RIQHARD. AQHAYEs, OF ELGI N, ILLINOIS.

dlMPROVEM ENTlN ELEc Ro-M cNE -ic BOILER-FEED REGULATORS.-

. Specification forming part of Letters PatentNoi 189.098, dated April3, 1877; application filed k v d January 22, 1877."

Be it 'known that I, RICHARD A. HAYES,; of Elgin, in the county of Kaneand State of "Illinois, have invented a new and Improved 'ElectroMagnetic Boiler Feed Regulator, of

which the following isa specification-i Figure 1 is a plan; Fig.2 isadetail sec- -tio11al view of one of the magnets and armastares, takenonline aim, Figql'. Fig.3is a front 0 elevationon line w w,'Fig.1.' Fig. 4is a detail View in section on line y y in Fig.1. Fig. 5; isa detailview of one of the insulators. WSimilarlettersof reference indicatecorreipon'ding parts.

My invention relates toapparatusforregu- Y lating the supply of waterfed to a boiler and it consists of a lever connected with a;

steam-supply valve of a boiler-feed'pump, or with a'valvein thewater-supply pipe, and

I withf the armature of two seriesof electro ..1 nagnets, the saidmagnets being connected with a relay, which directs the current through4 either series asmay be required.

' The inventionalso consists in the detailsof ,con'strnctionandjarrangement which will be hereinafter more" fully described, andthen .pointed out in the claims. f j V f Reterrin-gtothe drawing, Ais'ahollow me tallic cylinder, having at its lower end a socket, a, for"receiving the' upper end of a'glass themetallic cylinder. a

' O is; a metallic head', whichis recessed to cylinder, B, which issmaller-in diameter than receive the lower end of the glass cylinder B,

and is provided'with' a" central opening-for receiving the pipe-bj'thatconnects "it; with the lower. portion of the boiler. This head {is ofsuflicient size to receive the bolts 0, which pass through it, and intothe lower" endof the cylinder A, and bindit and the glass 'cyl-inder tothe saidcylinderAL J I D is a glass cylinder that is smaller than Ithe'cylinder B. Its lower end is placed in a' socket, d, on the upperhead of the cylin- .derA.

' E is a metallie'capfitted to the upper end jof'the, glass tube D, andprovided with a v flange,je,'for receiving the boltsf, which pass intothe upper head of a the cylinder A." The f bolts 0 and f are divided,and-provided with su-lator-case.

insulators F, as shown in the enlarged sec- "tional View, Fig. 5.

The separated ends of the bolts are provided with heads 6 t" that areplaced in the in- The head 13 rests upon an insulatingsubstance, j,supported by the bottom of the case, which surrounds the bolt, andprevents it from touching the case, and the head i rests againsttheupper head of the "insulator-case.

'By means of the insulator F, and the glass cylinders B and D, themetallic cylinder A is perfectly insulated.

The cap E is conneeted with the upper part of the boiler by the pipe g,and as there is an open passage from the said cap to the lower head 0,the pressure in the metallic and glass cylinders is the same as that ofthe boiler to which the apparatus is attached, and the water stands atthe same level in the boiler, and in the said cylinders.

G is a float, made of metal, or other suitable material, that is placedin the cylinder B, and

is provided with a spindle, it, apart of which, between the floatGr andthe wire 1, is madejof insulating material. This spindle extends upwardthrough the'cylinder Ainto the glass cylinder D, and has upon its upperend a me- -tallic heador guide, It, that'fits the cylinder loosely,.andholds the spindle centrally-in th *cylinder D. 1 --Th e upper surface ofthe guide 70 may be made conical, so that it will not retain dirt orsediment. I

- A fine wire or chain, l, connects the cylinder A and 'the spindle h,and a binding-screw, m i's attached'to the cylinder A, for receiving theelectrical conducting-wires n 0.

- His an adjustable rod that slides through a'stuffing-box in the top ofthe cap E, and p is a binding-screw that receives the wire q.-

I is a'relay-magnet connected with theba-ttery J by the wire 1', andwith the bindingscrew of the metallic cylinder A by the wire a.

The battery J is connected with the cap E by the wire g. r The armatureK of the relay magnet I swings on a pivot, s, between the posts Mo, andis connected by a wire, '0, with one of the poles of the battery L. Thepost t is connected by the wire 20 with the magnetvM, and the post at isconnected'by the wire a with the magnet O.

The terminal wire of the magnet is.c.o.n.-..

nected by a wire, I), with the magnet P, whose terminal wire isconnected with the battery L, y The terminal wire of the magnet M isconnected by the wire 0 with the magnet Q, whose terminalwire isconnected with the battery L. It will be seen that the magnets O P andthe magnets M Q are arranged diagonally opposite. l l l R R are,respectively, the armatures of the magnets O P, and S S are thearmatures the magnets M Q. 7

T is a lever fulcrumed at U, and connected by rods d with the armaturesof the magnets- M O P Q. The rods (1 of the magnets M P are oppositelyconnected to the end of the short arm of the lever T, and the rods (11of the mag-i nets 0 Q are connected to the long arm of the lever at adistance from thefulcrum equal to the length of the short arm.

The end of the long arm of the lever T is connected by a rod, V, with abalanced throt tle-valve, A, which, is placed in the steamsupply pipe ofa steam-pump, or in the feed-l pipe that leads from thepump to theboiler. j

The long arm of the lever T issupported by a caster, e, and its motionis limited by the stops f f, which are slotted, and pro vided withscrews for holding'themin any desired position. l a

B is ,a bell-magnet of any ordinary con-. struction, which is connected,by a wire, .g,

with the binding-serewm of the metallic cylinder A, and also with thebattery 0 by the wire it, the battery being connected with -a point, i,by an insulating-wire, j.

The operation is as follows: a l

When water is at the required level in the boiler, the float G supportsthe spindle h, so that the guide 70 touches the rod H, complet ing theelectrical circuit of the battery J, ex citing the relay-magnet I, sothat its arma ture K is drawn toward it and into contact with the postat. a i 1 By this means a circuit is established through the magnets OP, and the long arm of the leverT is drawn toward the valve A, V

which is thereby nearly closed, and remains so as long as the current isunchanged and W q magnet, when the guide It strikes the wire 1',,whichcontinues to sound until the proper the steam-pump is onlynormally active. When the water drops in the boiler the float G alsofalls, and the current through the wires 1 n q is broken, andthespring-k draws the armature K from the port a and against the port t,thus breaking the battery-connection with the magnets O P andestablishing a current through the magnets M Q. This draws the long armof the lever T from the valve A,

opening the valve and admitting steamfco thefeed-pump, which works withincreased rapidity until the required water-level is attained, when theguide is touches the rod H, completingthe arena through the wires ld'rng, and the magnets O P, being again excited, move the lever T towardthe valve A, closing it and diminishing the action of the pump, or

stopping it altogether.

Should the water drop below the prescribed level,'the guide 70 strikesthe wire '11 and establishes a current through the bell-magnet B, whichcontinues to sound the alarm as long as a low state of water exists, oruntil the electrical current is broken by the rising ofthe float, l g il This device for giving an alarm may be constructed and usedindependently, if desired.

' The rods d, that connect the armatures with the lever T, are providedwith turnbucklesm, for adjusting the relative position of the armatures.a V

The armatures R Rof the diagonally-opposite magnets are arranged so thatas one of them approaches I the face' of its magnet it brings the otherarmature within the influence of its magnet.

The turn-buckles m" are so constructed that they permit a continuedmotion in the lever T afterone'of the armatures strikesits'magnet, inorder to allow the diagonally-opposite magnet to draw its armature toits seat. This is efl'ected by threading one end of the turnbuckle andallowing the head of the rod 11 to rest in the other end.

The armatures S t S are arranged in the samemanner. f

I do not limit my. improvements to the ex actform herein described, asit may, in practice, be found that a single magnet connected withthelever T, and an opposing springer weight may serve to move the valveA, and wires may also be arranged so that the current willbeestablished'through thewater when it rises so as to touch the saidwires, when the float may be dispensed withi The advantages claimed forthe invention are, that itcontrols the action of the pump,

so that a constant water-level is maintai'ned in the boiler, and in caseof a derangement of the float or its connections the magnets that openthe steam-pump throttle-valve are made to operate byrthe circuitestablished by releasingof the relay-armature.

- If, all, the valve-operating magnets."should become inoperative andthelwater continues togo down, an alarm is given bythe bellthrottle orgovernorvalve of a steam-boiler feed-pump, or the water-supply'valve, asthe names 3 electrical current is established or broken by the rise orfall of the said float, substantially as herein shown and described.

2. The float-chamber consisting of a central metallic section, A, theglass cylinders B D, cap E, head 0, and bolts 0 f, substantially asherein shown and described.

3. The float 0, having the spindle h and guide 1:, the float-chamber,having an insulated central metallic section, A, the metallic cap E,adjustable rod H, and the electrical conducting-wires Z n q, incombination, substantially as herein shown and described.

4. The relay I and battery J, in combination with the float andfloat;chamber, made as described, and the conducting-wires n q,substantially as herein set forth.

5. The relay 1, the oppositely-arranged magnets M Q and O P andtheirconductingwires, the lever T, connecting-rod V, and throttle-valveA, combined and arranged substantially as herein shown and described.

6. The bell-magnet B and battery 0, in combination with the float G,point i, insulated wire j, conducting-wires l 0, and the float-chamber,consisting of the parts A B O D E, in combination, substantially asherein shown and described.

7. The insulators F, consisting of a metallic casing and an insulatingsubstance, j, in combination with the bolts 0 f, substantially as shownand described.

RICHARD A. HAYES.

Witnesses:

O. SEDG-WIOK, GEO. M. HOPKINS.

